TRP EVO 12 Review: A Serious Drivetrain That Is Hard to Recommend

Introduction

SRAM and Shimano have held a duopoly over mountain bike drivetrains for the better part of two decades. Several brands have tried to break through with varying degrees of success, most visibly at the budget end of the market, where alternative groupsets are now a common sight on complete bikes.

TRP, the racing division of Tektro, is aiming considerably higher. The EVO 12 is the brand’s bid for the premium mechanical drivetrain market, and it is a genuinely competent piece of equipment. It is also, for most riders, difficult to justify against the two drivetrains it is priced against.

Who the TRP EVO 12 Is For

TRP has spent years building a strong position in braking, and its brakes now appear on a growing number of complete bikes. The EVO 12 is the brand’s second attempt at the drivetrain market after the TR12, and it arrives with the resources of a large manufacturer behind it.

One practical detail matters before anything else. Very few, if any, complete bikes are equipped with EVO 12 out of the box, so riders who want to run it will be buying aftermarket.

That makes it most interesting to riders who want an alternative to the two dominant brands and are willing to pay a premium to try something different.

Main Strengths: Shifting and Shifter Ergonomics

EVO 12 shifts well enough, and it has proven durable. Those two qualities alone put it ahead of many attempts to enter this market.

The shifter is the standout component. Its ergonomics are among the nicest available, and it feels like an expensive part in the hand. Pricing for the shifter sits at roughly $99 to $109.

Overall performance lands in the same territory as Shimano SLX and XT and SRAM’s mechanical GX Eagle. For a comparatively small brand competing against two of the largest component makers in the world, that is a significant achievement.

Chain Control and the Single or Multi-Shift Switch

The lock-on derailleur knuckle, combined with the new cage clutch, does excellent work managing chain slap and noise. On this measure, EVO 12 is right up there with the very best.

The shifter also carries a switch that changes it between a single shift and up to five shifts toward an easier gear. On long rides in the hills, where dumping multiple gears while saving energy matters, the multi-shift setting is a real benefit. On hard, fast group rides, where a missed shift can drop a rider off the back, the single-click mode gives precise, repeatable control that requires no thought.

These are the kind of details worth carrying forward into future versions.

Things to Consider Before Buying

The core limitation is shift quality. Changes are a little clunkier and less effortlessly smooth under load than the leading options, and the drivetrain does not feel as complete as a whole.

Then there is the price. The derailleur and cassette sit at around £240 or $400, which is punchy for the performance on offer. Roughly the same outlay as a complete EVO 12 drivetrain buys either top-of-the-line mechanical Shimano XTR or entry-level wireless SRAM GX Transmission.

Riders who only need performance comparable to EVO 12 have cheaper routes. XT and mechanical GX Eagle deliver similar shifting for roughly half the price.

The same maths applies to bike brands. Specifying EVO 12 over GX or XT would push up the price of a complete bike, and buyers may not see the value in paying more for a groupset that does not carry one of the two names they already know.

Buying Advice

EVO 12 is a very good attempt at turning the drivetrain market on its head, and a clear improvement over the earlier TR12. Even so, it is hard to make a strong case for it over its rivals at the current pricing.

Buyers with the budget for EVO 12 are better served by XTR or GX Transmission. Buyers who want the level of performance EVO 12 delivers can save real money with XT or mechanical GX Eagle.

A cheaper EVO 12 would change the calculation. Trimming cost from the derailleur’s carbon cage, using a simpler cassette construction, and offering a shifter without the single or multi-shift switch would bring the price closer to mid-range rivals.

TRP has already proven it can compete in the brake market by offering similar or better performance at a similar cost, and that approach lifted its market share. Repeating it with the next iteration of EVO 12, while sharpening shift quality at the same time, could make the brand a genuine third option at the top of the market. For now, the big two remain the safer purchase.

Conclusion

EVO 12 shows that TRP can build a high-end drivetrain with excellent ergonomics, strong chain control, and real durability. What it does not yet show is a compelling reason to choose it over Shimano or SRAM. The shifting is a step behind, the price sits ahead of comparable performers, and very few complete bikes come with it as standard. It is a promising foundation, and the next version is worth watching, but today the established options remain the easier recommendation.